Pathfinder RPG: Lost Lexicon Part 1: Heart of the Machine

The first Thunderscape Adventure Path begins here! Times are tough for adventurers in Aden, and the high-paying bounties offered by the Cogswheel Irregulars in Mekanus are a great place to save up a few crests for traveling. As representatives of the Urbanan government, however, the adventurers soon find themselves in the crosshairs of a group eager to retrieve forgotten secrets from the most dangerous parts of the city, and they`re only the first ones to paint a target on their backs!